Elaeocarpidine, a Naturally Occurring Racemate, from Tarenna vanprukii - Takayama, Hiromitsu; Katsura, Makiko; Seki, Norio; Kitajima, Mariko; Aimi, Norio; Sakai, Shin-ichiro; Santiarworn, Dammrong; Liawruangrath, Boonsom (Planta Medica, 1992)